Functional neuroimaging of reward circuitry responsivity to monetary gains and losses in posttraumatic stress disorder
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Background Clinical impressions and preclinical work suggest that posttraumatic stress disorder (PTSD) might be associated with dysfunctional reward processing. To pursue this issue, we administered a validated passive-viewing monetary reward task during functional magnetic resonance imaging (fMRI) to subjects with chronic PTSD and to mentally healthy individuals.Methods The protocol evaluated fMRI signal changes that anticipated or accompanied monetary gains and losses under varying conditions of controlled expectation. The "expectancy phase" entailed presentation of a promising, unpromising, or intermediate Wheel of Fortune-type spinner, whereas the "outcome phase" was defined by the arrow landing on one of three sectors of that spinner, thereby determining the subjects' gain or loss for that trial.Results Neuroimaging data from 20 PTSD and 26 healthy subjects withstood quality control procedures and were included. In voxelwise and anatomically defined region-of-interest analyses, when gains were contrasted to losses, between-group comparison revealed smaller bilateral striatal activations in the PTSD subjects. In the PTSD group, less striatal activation to gains versus losses was associated with more self-reported motivational and social deficits.Conclusions The present data support the hypothesis that PTSD is associated with abnormal processing of monetary outcomes and that this alteration might be related to some aspects of emotional numbing.
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A growing recognition of alterations in reward processing led to a reconceptualization of PTSD as an imbalance between approach (reward-related) and avoidance (fear-related) systems.
“While early research focused on fear-related processes, a growing recognition of alterations in reward processing (115, 116) led to a reconceptualization of PTSD as an imbalance between approach (reward-related) and avoidance (fear-related) systems (117–119).”
From A transdiagnostic perspective on social anhedonia (2019) · cites this paper as [115]
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- Authors
- Elman, I., Lowen, S., Frederick, B. B., Chi, W., Becerra, L., & Pitman, R. K.
- Affiliations
- Harvard University (US)
- Corresponding author
- Elman, Igor
- Venue
- Biological Psychiatry
- Publisher
- Elsevier BV
- Published
- 2009-12
- Volume
- 66
- Issue
- 12
- Pages
- 1083-1090
- ISSN
- 0006-3223 (ISSN-L)
- PMC
- PMC9446383
- OpenAlex
- W1965978496
- Cited by
- 165
- References
- 77
- Citations by year
- 2026: 2 · 2025: 8 · 2024: 4 · 2023: 12 · 2022: 9 · 2021: 11 · 2020: 18 · 2019: 11 · 2018: 9 · 2017: 10 · 2016: 20 · 2015: 11 · 2014: 7 · 2013: 10 · 2012: 8
- FWCI
- 7.77
- Type
- journal article
- Language
- en
- Open access
- green
- www.ncbi.nlm.nih.gov
- Locations
- Biological Psychiatry (publishedVersion)
- PubMed (publishedVersion)
- PubMed Central (acceptedVersion)
- Funders
- National Institute on Drug Abuse (K25DA016612, R01DA017959, DA16612, DA 017959)
- Topics
- Social Sciences › Psychology › Clinical Psychology › Posttraumatic Stress Disorder Research
- Life Sciences › Neuroscience › Cognitive Neuroscience › Neural and Behavioral Psychology Studies
- Life Sciences › Neuroscience › Cellular and Molecular Neuroscience › Neurotransmitter Receptor Influence on Behavior
- Keywords
- post-traumatic stress disorder, reward processing, monetary gains and losses, striatum, emotional numbing, motivational deficits, social dysfunction, chronic PTSD
- MeSH terms
- Adult, Analysis of Variance, Brain, Brain Mapping, Female, Humans, Image Processing, Computer-Assisted, Magnetic Resonance Imaging, Male, Memory, Middle Aged, Nerve Net, Oxygen, Reward, Stress Disorders, Post-Traumatic, Time Factors, Young Adult
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